package cn.tedu._06springaop.aop;

import org.aspectj.lang.JoinPoint;
import org.aspectj.lang.ProceedingJoinPoint;
import org.aspectj.lang.annotation.*;
import org.springframework.context.annotation.Bean;
import org.springframework.stereotype.Component;

import javax.swing.*;
import java.util.Arrays;

@Aspect
@Component
public class LogAspect {
    @Pointcut("execution(public int cn.tedu._06springaop.aop.CalculatorImpl.*(..))")
    public void doTime(){}

    @Before("doTime()")
    public void beforeMethod(JoinPoint joinPoint){
        String name = joinPoint.getSignature().getName();
        String args = Arrays.toString(joinPoint.getArgs());
        System.out.println("[前置通知]"+name+"方法开始，参数为:"+args);
    }
    @After("doTime()")
    public void afterMethod(JoinPoint joinPoint){
    String name = joinPoint.getSignature().getName();
    System.out.println("[后置通知]"+name+"方法结束");
    }
    @AfterReturning(value = "doTime()",returning = "result")
    public void  afterReturningMethod(JoinPoint joinPoint,Object result){
        String name = joinPoint.getSignature().getName();
        System.out.println("[返回通知]"+name+"方法返回值为:"+result);
    }
    @AfterThrowing(value = "doTime()",throwing = "ex")
    public void afterThrowingMethod(JoinPoint joinPoint,Throwable ex){
        String name = joinPoint.getSignature().getName();
        System.out.println("[异常通知]"+name+"方法抛出异常:"+ex.getMessage());
    }
    @Around(value="doTime()")
    public Object aroundMethod(ProceedingJoinPoint joinPoint){
        Object result = null;
    try{
        System.out.println("[环绕通知]前置通知");
        result = joinPoint.proceed();
        System.out.println("[环绕通知]后置通知");
    }catch(Throwable e){
        System.out.println("[环绕通知]异常通知");
        throw new RuntimeException(e);
    }finally{
        System.out.println("[环绕通知]最终通知");
    }
    return result;
    }
}
